Auxiliary air-valve for internal-combustion engines.



L.R.SAUNDER& AUXILIARY AIR VALVE P017. INTERNAL COMBUSTION ENGINES. APPLICATION FILED SEPT. 21,1912

LUJBLF'YS, Patented Dec. 16, 1913 W t/*2 6,615 as, I)? z/evz do 2 spreading out of the current of air as it enp'n'rrnn srairns Parana onnicn.

LESLIE It. SAUNDERS, 013' LOS ANGELES, CALIFORNIA, ASSIGNOR T0 LESLIE B. SAUNDERS COMPANY, 0 LOS ANGELES, CALIFORNIA, A CORPORATION OF CALIFORNIA.

AUXILIARY AIR-VALVE FOR INTERNAL-COMBUSTION ENGINES.

"new and useful Auxiliarv Air-Valve for Internal-Combustion Engines, of which the following is a specification.

My invention relates to improvements in auxiliary air valves for internal combustion engines, and an object of my invention is to provide an auxiliary valve to the inlet pipe of such an engine that will be simple in construction, cheap in manufacture, and positive and certain in action. This valve is an improvement not only upon the construction, but also upon the operation of other valves of its class. Hitherto such valves have not provided for a proper ters the lntake pipe of the manifold. By

' this invention, however, as thin current of air is delivered into the intake pipe 2 from all sides of the valve member 19, which causes the additional air supplied to be thoroughly mixed with the fuel mixture in the intake pipe of the manifold. Furthermore, there is a contraction of the air passage due to the conical shape of the valve member 13 toward the point at which the air is delivered to said intake pipe 2, with the result that the air enters said pipe at a high velocity, and a thorough mixing of the additional air with the fuel mixture results. I attain this object by means of the mechanism illustrated in the accompanying draw ings, in which Figure 1 is a view in elevation of my device in position. Fi 2 is a sectional view of the valve enlarge Fig. 3 is a side elevation of the lever end. Fig. 4 is a sectional view of the same.-

To the inlet pipe between the manifold 2 of the internal combustion engine 1, and the carburetor 3, I connect my auxiliary valve. This valve is a very small and compact casing 4 which is provided with the perforations 18. In this casing is a slidable valve member 13 of slightly conical shape, the larger end 19 of which protrudes throu h the open end 16 of the casin into the-in e't pipe 2 and is slightly larger t an said open mg. In the closed end of the casing 4 is made the opening 4'. in whichis inserted Specification of Letters Patent.

Application filed September 21, .1912.

Patented Dec. 16, 1913. Serial no. mama.

the flexible pipe 5 which is secured by means of the set screw 17. The flexible rod 6 is inserted in the valve member 13 where it is secured by means of the set screw 14. This rod runs out through the tube 5 and may be connected with the hand lever 9 b means of the screw' 9, the end of the flexible tube 5 being secured to the are 8 by meanspf the screw 21. This are 8 is attachable to the shaft 7 of the'steering wheel of an antomo b1lc by means of the strap 24, one end, 25, of which is swaged in the slot 26 of the are, and the other end 27 after passing around the said steering shaft is inserted through the hole 28 in the arc, the extreme end being threaded and serving as a pivot for the lever 9. The nut 29 is screwed on the end of the pivot to hold the lever in position. The handle 10 is screwed into the other end oi the lever 9.

In operation, the movement of the lever by the driver of an automobile will push the valve member 13 into the pipe 2, thus allowingthe auxiliary air from the perforations 18 to enter the inlet pipe and mix with the gas. As the valve member 13 is approximately bell shaped and the openin 16 of the casing is left with a sharp true e5 opening can be closed tightly without danger of the valve member 13 sticking. Thus the valve is made free acting and efi'ective in a very small casing. The exact seating of the valve 13 is insured by reason of the same being connected to a somewhat flexible wire which pulls said valve up against its seat, and allows the valve to adjust itself accurately to its seat. My device istherefore not only novel and. effective but very simple and eheap in manufacture.

What I claim as my invention and desire Letters Patent for is 1. .In auxiliary air supply mechanism for internal combustion engines, the combina tion with an additional air inlet tube having means for attachment at its inner end to a valve seat on said ihner end, of an out wardly tapered conical valve plug cofiperating with t e seat and capable of free lateral movement to adjust itself properly a ainst said seht, said valve havin its lar er en projecting beyond said additional air inlet tube and being thus movable into the main inlet ge, the l tube when said valve is openedzmd e flexible Wife secured to sand conical valve plug and pirogeetmg from-its outer end to draw the plug to its seat egalnst the euctlon of the engine, the flexibility of said Wire permitting the plug to laterally ad ust itself.

2. Clhe combination vvlth an internal o0m bustion engine, a oerbureter, end a main inmew/re outwardly tapered controlling valve coasting with the seat and moving to open position into the main inlet pipe transversely thereof, and means extending longitudinally of the auxiliary air inlet tube and projecting from the outer tapered end of the valve for moving the some to cloeed position.

meme SAUNDERS.

Witness es LE 

